from my_package import add, minus, mul, div

from my_package import __version__, __author__

print(__author__, "version=", __version__)

from my_package.sub_package import mul as sub_mul, div as sub_div


res = add(10, 20)
print("add=", res)

res = minus(10, 20)
print("minus=", res)

res = mul(10, 20)
print("mul=", res)


res = div(10, 20)
print("div=", res)


res = sub_mul(10, 20)
print("sub_mul=", res)


res = sub_div(10, 20)
print("sub_div=", res)
